1893.] -^ • * [Packard. 



dots in front and one on each side. There are four subdorsal, ochreoup, 

 rust-red, fine, wavy, irregular lines, which are broken at the sutures and 

 enclose three slill slighter and much less regular more broken dorsal lines. 

 Near the front of each segment these three short dorsal lines more or 

 less unite to form a conspicuous oval, dull ochreous-red spot, irregularly- 

 centred with a paler hue ; the spots on the second and third thoracic seg- 

 ments being paler and running more into each other. The ground color 

 of the body is dull bluish, with black specks. The dot of the dorsal 

 ochreous exclamation mark is now nearly or quite obsolete, sometimes 

 represented by a few scales or irregular dots, and the main mark is itself 

 sometimes irregular and reduced in size. On each side, just behind each 

 exclamation mark, is a conspicuous black dot, and another similar pair be- 

 hind, making four conspicuous dots, the anterior two more distinct than 

 the others. 



There are two irregular, subdorsal, wavy, Scotch-snuff-colored thread- 

 lines edged with black. The pale sky-blue field of the back of each seg- 

 ment is divided by the two black spots into three bluish patches on each 

 side of the dorsal area. Tlie sides of the body blue, speckled with black. 

 A lateral pale snufif line above the spiracles edged with black, which 

 gathers in the middle into a dot, which is situated above the spiracle. A 

 faint, double, flesh-colored, infrastigmatal line, verj^ irregular, sometimes 

 sending streaks towards the black spiracles, the lower of the two lines 

 forming elongated patches at the base of the legs, the two lines being 

 more or less confluent on the thoracic segments. In some specimens there 

 is only a short, broken, snuff-colored line at the base of the abdominal 

 legs ; and a snuff-yellow dot on each side of the first thoracic segment. 



The body is less hairy perhaps than in any of the other species. There 

 are a few long, dark, dorsal hairs, with an undergrowth of fine ochreous 

 hairs, and on the sides of the body below the spiracles are lateral, whitish 

 gray, rather dense hairs, directed downwards. The hairs are longest on 

 the thoracic and eighth abdominal segment, the latter being well swollen 

 or humped on the back. 



The body beneath is livid bluish, with pale flesh-colored patches on the 

 front of each abdominal leg, except the anal pair. 



This species differs from C.fragilis or C. cahfornica in the rather less 

 hairy body, and the four subdorsal rust-red lines, enclosing the three dor- 

 sal, short, rusty, broken lines which in front of each segment form a dis- 

 tinct, short, oval, reddish spot ; and also in the distinct bluish cervical 

 shield. 



Clisiocampa constricta (Stretch). 



The following description was drawn up from blown specimens kindly 

 loaned me by Prof. J. J. Rivers, of the University of California, 



Full-fed Larva. — Length, 46-48 mm. Head mottled with dull blue and 

 black spots, the spots not arranged in lines, as they are in G. thoracica. 

 The body is rather more hairy than in the other Pacific coast species, and 



